Several letters to the editor are presented in response to articles in previous issues including "Do Carbon Credits Make Sense?" in the October 2009 issue and "The War for the Customer Next Door" in the October 2009 issue.

Several letters to the editor are presented in response to the article "Eight Greenbuild Conference Draws More Than 20,000" in the December 14, 2009 issue, focusing on the choice to have former U.S. Vice President Al Gore as the periodical cover, and Gore's position on climate change and carbon...

The article reports on the likelihood of carbon allowances in European Union countries to increase 28% to 7.50 euros a metric ton in December 2014 as lawmakers work on a proposal to permanently reduce a record supply.

The article reports on a study that will be conducted by researchers from the University of Kentucky, University of North Carolina and Indiana University and financed by the National Science Foundation, to determine the environmental and economic impact of stacking carbon, stream and wetland...